25380321 has 8 divisors (see below), whose sum is σ = 34248480. Its totient is φ = 16716192.

The previous prime is 25380319. The next prime is 25380343. The reversal of 25380321 is 12308352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25380321 - 2¹ = 25380319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25380291 and 25380300.

It is not an unprimeable number, because it can be changed into a prime (25380361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50716 + ... + 51213.

It is an arithmetic number, because the mean of its divisors is an integer number (4281060).

Almost surely, 2^25380321 is an apocalyptic number.

It is an amenable number.

25380321 is a deficient number, since it is larger than the sum of its proper divisors (8868159).

25380321 is a wasteful number, since it uses less digits than its factorization.

25380321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102015.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 25380321 is about 5037.8885458096. Note that the first 3 decimals coincide. The cubic root of 25380321 is about 293.8770715659.

Adding to 25380321 its reverse (12308352), we get a palindrome (37688673).

The spelling of 25380321 in words is "twenty-five million, three hundred eighty thousand, three hundred twenty-one".